import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'
Vue.use(VueRouter)

const router = new VueRouter({
  routes: [
    { path: '/', redirect: '/login' },
    { path: '/login', component: Login },
    {
      path: '/home',
      component: Home,
      // 重定向
      redirect: '/welcome',
      children: [
        { path: '/welcome', component: Welcome },
        { path: '/users', component: Users }
      ]
    }

  ]
})
// 挂在路由导航守卫
router.beforeEach((to, from, next) => {
  // to 将要访问的路径
  // from 代表从哪个路径跳转而来
  // next()放行 next('/login') 强制跳转
  if (to.path === '/login') {
    next()
  } else {
    const tokenStr = window.sessionStorage.getItem('token')
    if (!tokenStr) {
      next('/login')
    } else {
      next()
    }
  }
  // if (to.path === '/login') return next()
  // // 获取token
  // const tokenStr = window.sessionStorage.getItem('token')
  // if (!tokenStr) return next('/login')
  // next()
})
export default router
